Unmanned aerial vehicle



FIG. 1 is a front perspective view of an unmanned aerial vehicle, showing the new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines of even length illustrate portions of the unmanned aerial vehicle that form no part of the claimed design. 

CLAIM The ornamental design for an unmanned aerial vehicle, as shown and described. 